# Which expression is a sum of cubes? (2023)

## Which expression is a sum of cubes?

A polynomial in the form a 3 + b 3 is called a sum of cubes.

(Video) which expression is a sum of cubes
(OneClass)
Which is the sum of two cubes?

Case 1: The polynomial in the form a 3 + b 3 {a^3} + {b^3} a3+b3 is called the sum of two cubes because two cubic terms are being added together.

(Video) Factoring sum of cubes | Polynomial and rational functions | Algebra II | Khan Academy
Which expression is the perfect cube?

A perfect cube is a number that is obtained by multiplying the same integer three times. For example, multiplying the number 4 three times results in 64. Therefore, 64 is a perfect cube. Therefore, perfect cube = number × number × number.

(Video) Factoring Sums and Differences of Perfect Cubes
(The Organic Chemistry Tutor)
What is the difference of cubes formula?

Factoring Sum and Difference of Cubes - YouTube

(Video) 10 - Factor Sum of Cubes and Difference of Cubes in Algebra, Part 1
(Math and Science)
How do you solve the difference of two cubes?

Factoring Sums and Differences of Cubes - YouTube

(Video) Factoring Sums and Differences of Cubes
(patrickJMT)
Is every number the sum of two cubes?

Every positive integer has a multiple which is the sum of two cubes.

(Video) Factoring Sum and Difference of Cubes
(Mario's Math Tutoring)
What is the sum of cubes of first n natural numbers?

We know that sum of cubes of first n natural numbers is = (n(n+1)/2)2.

(Video) Evaluating an Algebraic Expression in Two Ways
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What is the sum of first 10 perfect cubes?

Sum of Cubes of n Natural Numbers Examples

Therefore, the sum of cubes of the first 10 natural numbers is 3025.

(Video) Difference of cubes factoring | Polynomial and rational functions | Algebra II | Khan Academy
Which of the following numbers is a cube number?

The first 11 cube numbers are 0, 1, 8, 27, 64, 125, 216, 343, 512, 729, and 1000.

(Video) How to factor using the sum of two cubes
(Brian McLogan)
How do you find the cube of a number?

(Video) How to factor the Sum of 2 Cubes
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## What is the rule of cube?

The cube rule or cube law is an empirical observation regarding elections under the first-past-the-post system. The rule suggests that the party getting the most votes is over-represented (and conversely, the party getting the fewest votes is under-represented).

(Video) How to factor a polynomial using the difference of two cubes
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How do you write 2 cubed?

2 cubed is 23 = 2×2×2 = 8. The term "cube" can be remembered because there are three dimensions in a cube (height, width, and depth) and the number being cubed appears three times in the calculation. How do you factor the sum of a cube?

How to factor the Sum of 2 Cubes - YouTube

What is a two cubes?

The Difference of Two Cubes is a special case of multiplying polynomials : (a−b)(a2+ab+b2) = a3 − b3. It comes up sometimes when solving things, so is worth remembering. And this is why it works out so simply (press play):

How do you factor quadratic equations cubed?

In general, to factorise a cubic polynomial, you find one factor by trial and error. Use the factor theorem to confirm that the guess is a root. Then divide the cubic polynomial by the factor to obtain a quadratic. Once you have the quadratic, you can apply the standard methods to factorise the quadratic.

Can the sum of two cubes be a cube?

Abstract. It is known that one cannot write an integer cube as a sum of two integer cubes (Fermat's Last Theorem). The number 1728 (= 123) comes close to being the sum of two cubes, but falls short by 1.

How do you do 2 cubed?

Cube Numbers - Primary - YouTube

What is two cube difference?

The Difference of Two Cubes is a special case of multiplying polynomials : (a−b)(a2+ab+b2) = a3 − b3. It comes up sometimes when solving things, so is worth remembering. And this is why it works out so simply (press play): © 2020 MathsIsFun.com v0.936.

1729, the Hardy-Ramanujan Number, is the smallest number which can be expressed as the sum of two different cubes in two different ways. 1729 is the sum of the cubes of 10 and 9 - cube of 10 is 1000 and cube of 9 is 729; adding the two numbers results in 1729.

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